JavaScript: The Definitive Guide

25.208. Navigator.javaEnabled( ): test whether Java is available

JavaScript 1.1

25.208.1. Synopsis

navigator.javaEnabled( )

25.208.1.1. Returns

TRue if Java is supported by and enabled on the current browser; false otherwise.

25.208.2. Description

You can use navigator.javaEnabled( ) to check whether the current browser supports Java and can therefore display applets.